diff --git a/conf/app.src b/conf/app.src
index c16f9db..3405fc4 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/misskey-dev/misskey/archive/refs/tags/12.119.2.tar.gz
-SOURCE_SUM=0620c8d4ee82f3bfa5749197b719cff606628413875589918df58f71cae9df57
+SOURCE_URL=https://github.com/misskey-dev/misskey/archive/refs/tags/13.8.1.tar.gz
+SOURCE_SUM=6464f76a3c8e310bdba7466968798056ff3547210f71aa8d8ee8984de5be80c8
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true